JPH08280591A - Rotating device for brush or pad for floor surface treating machine - Google Patents

Abstract

PURPOSE: To widen the work width of a brush or a pad via a very simple action with a device having a relatively simple structure and capable of being realized at a low cost. CONSTITUTION: A sun gear 4b is fitted to the drive rotary shaft 4a of a motor 4, a planetary gear 9a is fitted to both an internal tooth gear 11 provided concentrically with the drive rotary shaft 4a and the sun gear 4b, and a pad 10 (brush) is fitted to the output shaft 9 of the planetary gear 9a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of floor surface processing machines (floor cleaning machines, floor polishing machines) in which a brush or pad is rotated by a motor to clean or polish the floor surface. Specifically, the present invention relates to a rotating device that rotates the brush or pad.

[0002]

2. Description of the Related Art Under the recent circumstances where the floor surface is cleaned and polished before the dirt of the floor is considerably deteriorated due to the spread of daily maintenance, the cleaning width (polishing width) of one pass of the floor surface processing machine. It is possible to shorten the working time by increasing the width.

Therefore, conventionally, for example, JP-A-63-242 has been used.
As can be seen in Japanese Laid-Open Patent Publication No. 213, the working width can be increased by replacing the brush of the washing machine, or, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent Publication No. 154143 or Japanese Patent Publication No. 6-504692, a floor surface treating machine (floor cleaning machine) configured to open the brush laterally to expand the working width as necessary. Was being developed.

[0004]

However, in the case of the former processing machine, in which the brush is replaced to widen the working width of one pass, the machine is lifted every time the brush is replaced, or
Since it is necessary to move the rotating motor etc. up and down,
The work is extremely complicated, and in the case of the latter processing machine in which the brush is opened in the lateral direction to expand the working width of one pass, a plurality of brushes are provided, and one of these brushes is placed horizontally. Since it operates to extend in the direction, many parts and a complicated mechanism are required, and there is a drawback that the manufacturing cost becomes high.

Therefore, the technical problem of the present invention is that the working width of the brush or the pad can be widened by an extremely simple operation, and by using an apparatus which can be realized at a low cost with a relatively simple structure, The work width of the brush or pad can be easily widened.

[0006]

[Means for Solving the Problems] Means taken in the present invention for solving the above technical problems are as follows.

In a floor surface treating machine configured to clean or polish a floor surface by rotating a brush or a pad with a motor,

(1) A sun gear is attached to a rotary drive shaft rotated by the motor, and a brush for floor surface treatment is attached to an output shaft of a planetary gear that rotates around the sun gear while rotating in conjunction with the sun gear. Or attach a pad.

(2) The output shaft of the planetary gear having a brush or a pad attached thereto is supported by a planetary arm rotatably attached to the rotary drive shaft of the motor, while the output shaft of the planetary gear is rotatable around the sun gear. Between the internal gear and the sun gear supported by, the planetary gear is meshed so as to revolve while rotating around the sun gear according to the rotation of the sun gear, and the planetary arm and the internal gear Providing locking parts on both sides, and providing a stopper that can switch between these locking parts alternately.

(3) The stopper switching operation is performed by turning on / off the solenoid.

(4) The gear ratio of the sun gear to the planetary gear is within the range of 1: 1 to 1: 2, and the gear ratio of the planetary gear to the internal gear is within the range of 1: 2.5 to 1: 3. It is preferable that the gear ratio between the sun gear and the planet gears is 1: 1 and the gear ratio between the planet gears and the internal gear is 1: 3.

[0012]

The means described in (1) to (4) above operates as follows.

According to the means described in the above (1), the output shaft of the planetary gear is configured to mesh with the sun gear and rotate around the sun gear while rotating in conjunction with the rotation of the sun gear. Since the brushes or pads for floor surface treatment are installed, the work width of the brushes or pads can be widened and the work time can be shortened compared to the case where these brushes or pads are directly attached to the rotary drive shaft of the sun gear. To be able to do.

According to the means described in (2) above, when the rotation of the internal gear is stopped by the stopper, the planetary gear meshing with both the sun gear and this internal gear follows the rotation of the sun gear. Since it revolves around the sun gear while revolving around the sun, the working width of the brush or pad attached to the output shaft of this planetary gear can be increased, and when the rotation of the planetary arm is locked by the stopper, the sun Even if the gear rotates, the planet gear only rotates (rotates) on the spot and does not revolve around the sun gear, so the working width of the brush or pad can be stopped to that diameter, so the stopper switching operation It is possible to widen or narrow the working width of the brush or pad by itself.

According to the means described in the above (3), since the stopper for switching the working width of the brush or the pad is operated by the solenoid, the changeover switch (on / off switch) of this solenoid is operated by the operating section of the floor surface processing machine. It becomes possible to switch the working width very easily with one touch by providing the switch.

According to the means described in the above (4), since the gear ratio of the sun gear and the internal gear is set to 1: 1 to 1: 2, when the working width of the brush or pad is narrowed, the rotation speed is reduced. The cleaning effect or polishing effect can be increased by increasing the ratio of the sun gear to the internal gear, which is 1: 2.5 to 1: 3.
The working width of the brush or pad can be widened by about 20% due to the above-mentioned constitution, and the working width can be greatly expanded with a small brush or pad.

As described above, the technical problems described above can be solved by the above means, and the problems of the conventional art can be solved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a brush or pad rotating device for a floor surface treating machine according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a partial sectional side view showing the structure of a floor polisher in which a rotating device according to the present invention is implemented, and FIG. 2 is a front sectional view showing the structure of the main part thereof. In these drawings, 1 is a floor polisher, 1a is an operation handle,
2 is a drive wheel, 3 is a front wheel, 4 is a pad motor, 4
a is a rotary drive shaft that is directly or indirectly rotated by the pad motor 4, 10 is a pad that is interlocked with the rotary drive shaft 4a, 7 is a pad rotary chamber containing the pad 10, and 8 is a pad rotary chamber 7 A rubber skirt attached to the outer periphery of the exhaust pipe and an exhaust pipe 7a communicating with a vacuum fan (not shown).

The floor polisher 1 thus constructed runs while the drive wheels 2 are driven and rotated by a motor (not shown),
The pad 10 is rotated by the pad motor 4 during traveling to polish the floor surface. Wax or dust scraped off by the rotation of the pad 10 is collected through the exhaust pipe 7 a connected to the pad rotation chamber 7. Dust part (not shown)
It is designed to be collected in.

The present invention is a floor polisher 1 constructed as described above.
The present invention relates to a rotating device capable of enlarging or narrowing the working width of the pad 10, and the detailed configuration thereof will be described below.

In the above-mentioned FIGS. 1 and 2, 1T is a substrate provided inside the floor polisher 1, and 5 is the pad rotation chamber 7 described above.
The pad motor 4 is fixed on the top plate 5, and the entire pad rotation chamber 7 is integrally movable with the motor 4 so as to be able to move up and down with respect to the floor. Has been done.

4b is a sun gear mounted on the rotary drive shaft 4a of the motor 4, 12 is a planet arm pivotally mounted on the rotary drive shaft 4a so as to be horizontally rotatable, and has a substantially U-shaped cross section. 9 is the planet arm 12 The output shaft 9 is rotatably attached to the front end portion 12b of the output shaft 9, and the pad 10 is attached to the lower end portion of the output shaft 9 by using a fastener 10a. 9a is meshed with the sun gear 4b, and when the sun gear 4b is rotated by the motor 4, the planetary gear 9a is interlockedly rotated to rotate the pad 10.

Reference numeral 6 denotes a housing case body for the gears 4b and 9a provided in the upper portion of the pad rotation chamber 7 described above, and 11 denotes an inner bottom portion of the case body 6 concentrically with the rotary drive shaft 4a. Further, the internal gear mounted rotatably so as to surround the sun gear 4b, 11G is its internal teeth, 11R, 1
Reference numeral 1R is a guide roller for supporting the position and rotation of the internal gear 11, and the planetary gear 9a described above meshes with both the sun gear 4b and the internal gear 11 as shown in FIGS. There is.

Further, 11a and 12a are the internal gear 11
And a locking portion projecting on each side of the planetary arm 12,
Reference numeral a is a stopper configured to be capable of being alternately switched and locked to the respective locking portions 11a and 12a in accordance with the on / off operation of the solenoid 13 attached to the top plate 5.
In the figure, 13S indicates an on / off switch for the solenoid 13 provided in the operation unit of the floor polisher 1.

According to the rotating device of the present invention described above, when the motor 4 is driven and rotated while the engaging portion 11a of the internal gear 11 is retained by the stopper 13a as shown in FIGS. Since the gear 4b rotates in conjunction with the planetary gear 9a, the pad 10 attached to the output shaft 9 rotates to polish the floor surface, while the planetary gear 9a meshes with the internal gear 11 as shown in FIG. While rotating around the sun gear 4b, the pad 10 revolves around its own axis, so that the pad 10 is at the position of the imaginary line shown in FIG. 1 and FIG.
Move to the position indicated by 0'and change the working width to pad 1
The diameter can be increased from 0, and when the floor polisher 1 is run while rotating the pad 10 in this manner, the pad 10 rotates in a complicated trajectory, so that the floor surface is evenly distributed. You can polish.

Further, the above-mentioned stopper 13a is switched by the solenoid 13 to operate the planetary arm 1 as shown in FIG.
When locked to the second locking portion 12a, the rotation of the planetary arm 12 is stopped and the planetary gear 9a rotates (rotates) on the spot.
Therefore, the working width of the pad 10 can be narrowed to its diameter width.

In addition, in the present invention, the number of teeth of each of the sun gear 4b and the planetary gear 9a is, for example, 15 and the internal gear 1
For example, the number of teeth of 1 is 45, the gear ratio of the sun gear 4b and the planetary gear 9a is 1: 1 and the gear ratio of the planetary gear 9a and the internal gear 11 is 1: 3. 2, the rotation of the internal gear 11 is stopped, and the rotation speed of the rotation drive shaft 4a rotated by the motor 4 is, for example, 6 rps.
= (360 rpm), the rotation speed of the planetary arm 12 is 1.5 rps = (90 rpm), the rotation speed of the pad 10 is 4.5 rps = (270 rpm), and
The effective cleaning width of the pad 10 in this state is the pad 1
When the diameter of 0 is 430 mm, it is expanded to 550 mm in one pass.

The rotation speed of the pad 10 when the rotation of the planetary arm 12 is stopped as shown in FIG. 4 is 6 rps = (360
rpm), it becomes possible to strongly polish within a narrow range by increasing the rotation speed.

When the number of teeth of the sun gear 4b is set to 15, the number of planet gears 9a is within the range of 15 to 30, and the number of the internal gear 11 is between 45 and 75. Within the range, the gear ratio of the sun gear 4b and the planetary gear 9a is 1:
The ratio is 1 to 1: 2 and the ratio of the number of teeth of the planetary gear 9a to the internal gear 11 is within the range of 1: 2.5 to 1: 3.

Next, an elevating device for vertically moving the pad 10 together with the motor 4 will be described with reference to the drawings.

In FIGS. 1 and 2, 25 is a bracket standing on the above-mentioned substrate 1T, and 26 and 27 are operating levers rotatably attached to the bracket 25 using a shaft.
Reference numeral 0 denotes a lift table mounted on the root ends of these two levers 26 and 27 using a shaft, and a motor 4 for the pad described above is mounted on a top plate 5 connected to the lower end of the lift table 20. Is installed.

Further, 21M is a lifting motor fixed to the upper end of the lifting table 20, 21 is a screw shaft connected to the lifting motor 21M via a joint 21a, and 21N.
Is a nut body screwed to the screw shaft 21, and 22 is an expansion / contraction structure in which the upper end is connected to the tip portion 24 of the one actuating lever 26 using a shaft and the lower end is connected to the nut body 21N described above using a shaft. An operable connecting arm 23 is a traction spring stretched between the tip 24 of the one operating lever 26 and the substrate 1T.

According to the above-described lifting device, when polishing the floor surface, the pad 10 and the pad rotation chamber 7 are lowered to the floor surface side as shown in FIG. 1, and the floor polishing machine 1 is moved to another place. In this case, the lifting motor 21M can be operated to raise the pad 10 and the pad rotation chamber 7 as shown in FIG.

That is, when the raising / lowering motor 21M is rotated to rotate the rotary screw shaft 21, the nut body 21N moves downward, so that the connecting arm 22 uses one actuating lever 26 as a fulcrum as a fulcrum in FIG. Since it rotates counterclockwise,
The lift table 20 is raised, and the motor 4 and the pad 10 attached thereto are also raised as shown in FIG.
The skirt 8 is also pulled up as the lift 20 rises.
The lower end surface of is raised about 12 mm above the floor surface.

Further, the pad 10 raised as shown in FIG.
In order to lower the pad rotation chamber 7 and the pad rotation chamber 7 to the operating state shown in FIG. 1, the elevating motor 21M is reversely rotated to reversely rotate the screw shaft 21 and the nut body 21N is moved upward. 20 can be lowered to lower the pad 10 and the pad rotation chamber 7 to the original operating state, and the lifting motor 21M can be controlled to adjust the ground pressure of the pad 10, the skirt 8 and the floor surface. It is also possible to arbitrarily adjust the width of the interval between and.

In the above-mentioned embodiment, the present invention has been described only when it is applied to the floor polisher 1, but in the present invention, a brush (not shown) is driven by the motor 4 while supplying cleaning water. The same can be applied to a floor cleaning machine that rotates to clean the floor surface, and the rotation device of the present invention can be used for the floor polishing machine and the floor cleaning machine. Use for both sides,
The floor surface can be polished and washed.

[0038]

As described above, according to the brush or pad rotating device for the floor surface treating machine of the present invention, the working width of the floor surface treatment by the brush or pad can be changed between the brush and the pad. Alternatively, the brush or pad can be easily expanded by using a device having a relatively simple structure using a planetary gear mechanism without laterally extending and rotating the brush or pad. Since it can clean and polish evenly, if you do it when cleaning or polishing a floor surface that is not so dirty,
An excellent processing effect can be exhibited in a short working time.

[Brief description of drawings]

FIG. 1 is a partial sectional side view of a floor polisher in which a rotating device according to the present invention is implemented.

FIG. 2 is a side sectional view showing an enlarged configuration of a main part of the present invention.

FIG. 3 is a plan view illustrating a meshed state of gears.

FIG. 4 is a configuration diagram illustrating a switching state by a stopper.

[Explanation of Codes] 4 Motor 4a Rotational Drive Shaft 4b Sun Gear 9 Output Shaft 9a Planetary Gear 10 Pad (Brush) 11 Internal Gear 11a Locking Part 12 Planetary Arm 12a Locking Part 13 Solenoid 13a Stopper

Claims (4)

[Claims] 1. A floor surface treating machine configured to clean and polish a floor surface by rotating a brush or a pad with a motor, wherein a sun gear is attached to a rotary drive shaft rotated by the motor. A brush or pad for floor surface treatment, characterized in that a brush or pad for floor surface treatment is attached to the output shaft of a planetary gear that rotates around its periphery while engaging with the sun gear and rotating in conjunction therewith. Rotating device. 2. An output shaft of a planetary gear having a brush or a pad attached thereto is supported by a planetary arm rotatably attached to a rotary drive shaft of a motor, while being rotatable around a sun gear. Between the supported internal gear and the sun gear, the planet gears are meshed so as to revolve around the sun gear while rotating around the sun gear, and both the planet arm and the internal gear are supported. 2. The brush or pad rotating device for a floor surface treating machine according to claim 1, further comprising a locking portion provided on the floor, and a stopper capable of locking the locking portions by alternately switching the locking portions. 3. The brush or pad rotating device for a floor surface treating machine according to claim 2, wherein the stopper switching operation is performed by turning on / off a solenoid. 4. The gear ratio between the sun gear and the planetary gear is 1: 1 to 1.
1: 2, the gear ratio of the planetary gears to the internal gear is 1: 2.5 to 1: 3, and the gear ratio of the sun gears to the planetary gears is preferably 1: 1. The brush or pad rotating device for a floor surface treating machine according to claim 2, wherein the gear ratio between the planetary gear and the internal gear is 1: 3.